Just wondering how long the job will take for 2 DIY people with adequate beer breaks to blow in cellulose insulation in a 40x36 shop. Going for an R44 which will be about 96+- bags. Attic is pretty easy to move around in also. Thanks. -MATT
2-3 hours max. I'd avoid the beer breaks until the job is done; wouldn't want anyone falling through the ceiling. The last time I did such a project it was about all one person could do to keep up with filling the blower.
Make sure you have some kind of stops in the soffit area so you don't blow insulation out into the soffit. Also, use those foam baffle thingies so you can maintain airflow from the soffit to the ridge vents - don't fill too full.
i did 125 bags in my house last fall. went for R60, only about 2 hours and job was done. had my dad feeding the machine and my wife cutting open bags, and kids feeding her bags from the enclosed trailer. we had a great machine from lowes that worked flawlessly. the only thing i didn't like was it didn't have a tether kill/switch for me to shut it off when i needed to move to another area. the last house i did the machine had a user switch to kill it. my solution this last time, was i used a remote light, set up where the loader was and when i hit the remote button it would shut a lamp off where he was, he knew he needed to stop the machine.
I helped a friend do his attic and didn't know he needed me to stop feeding the machine. When he emerged from the rabbit hole it was quite the sight.![]()


Seriously, check with some contractors before doing this yourself. I had an additional R25 added to my house and R36 in the shop last fall, hiring the job done was cheaper than I could have bought just the insulation myself. Cheaper, and much less work is a good deal to me.
